Newlyweds Eric (John Husdon) and Jenni (Peggy Webber) retire to his desolate mansion, where Eric's first wife Marianne died from a mysterious freak accident. Jenni, who has a history of mental illness, begins to see strange things including a mysterious skull, which may or may not be a product of her imagination. Suspicion falls on Mickey (Alex Nicol), the estate's mentally challenged gardener, who was seemingly was very attached to his former mistress.